Outline vs Wiki.js: which one to choose in 2026?
Both are open source alternatives to Confluence. We compare license, tech stack and features to help you decide which fits your team best.
| Outline | Wiki.js | |
|---|---|---|
| Category | Productivity | Productivity |
| License | BUSL-1.1 | AGPL-3.0 |
| GitHub stars | 30k | 24k |
| Tech stack | Node.js, React, PostgreSQL, Redis | Node.js, Vue.js, PostgreSQL |
| Replaces | Confluence, Notion | Confluence |
Outline has more GitHub stars, which usually indicates a larger community (not necessarily that it's the best option for your use case).
Outline
Fast, elegant team wiki, an alternative to Confluence.
Pros
- Very polished interface, fast team adoption
Things to consider
- BUSL-1.1 license restricts offering it as a competing SaaS
Wiki.js
Modern wiki with version control, an alternative to Confluence.
Pros
- Highly configurable authentication and storage
Things to consider
- Fewer enterprise integrations than Confluence
Key features
Outline
- Real-time collaborative editing
- Instant search
- Collections and team permissions
Wiki.js
- Markdown and visual editor
- Git-style change history
- Multiple authentication providers